Pitch black

My parents and sister have been visiting us for the last couple of weeks.  Last night, my dad woke up at 4am needing to go to the bathroom.  It was pitch black, but he managed to walk around with his hands extended, looking for the door to get out of the bedroom.  He found it, opened the door, and walked out.

Then he started walking on something.  Perhaps shoes?  Something wasn’t right.

That's when he realized that he wasn’t outside the bedroom.  He was inside the closet.

My mom was glad that he didn’t think he had found the toilet.